ATE466169T1 - GAP SEAL FOR BLADES OF A TURBO MACHINE - Google Patents

GAP SEAL FOR BLADES OF A TURBO MACHINE

Info

Publication number
ATE466169T1
ATE466169T1 AT08153316T AT08153316T ATE466169T1 AT E466169 T1 ATE466169 T1 AT E466169T1 AT 08153316 T AT08153316 T AT 08153316T AT 08153316 T AT08153316 T AT 08153316T AT E466169 T1 ATE466169 T1 AT E466169T1
Authority
AT
Austria
Prior art keywords
blades
gap
engages
blade
turbo machine
Prior art date
Application number
AT08153316T
Other languages
German (de)
Inventor
Thomas Heinz-Schwarzmaier
Sven Olmes
Ronald Wifling
Original Assignee
Alstom Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alstom Technology Ltd filed Critical Alstom Technology Ltd
Application granted granted Critical
Publication of ATE466169T1 publication Critical patent/ATE466169T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • F01D11/008—Sealing the gap between rotor blades or blades and rotor by spacer elements between the blades, e.g. independent interblade platforms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

A strip-form sealing element (12) engages in the longitudinal slots (10,11) of the two blades (1,2) and bridges a gap (8). First blade has a projection (15) that projects from its blade root (6) along a circumferential direction (3) in the region of the respective longitudinal slot and bridges an axial longitudinal end of the gap (8) in the process. Second blade has a step-shaped recess (16) on its blade root (7) where the projection engages. The sealing element engages in the transverse slot (17) of the projection extending in the circumferential direction and opening towards the gap.
AT08153316T 2007-04-05 2008-03-26 GAP SEAL FOR BLADES OF A TURBO MACHINE ATE466169T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH5732007 2007-04-05

Publications (1)

Publication Number Publication Date
ATE466169T1 true ATE466169T1 (en) 2010-05-15

Family

ID=38457915

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08153316T ATE466169T1 (en) 2007-04-05 2008-03-26 GAP SEAL FOR BLADES OF A TURBO MACHINE

Country Status (6)

Country Link
US (1) US8043050B2 (en)
EP (1) EP1995413B1 (en)
JP (1) JP5094510B2 (en)
AT (1) ATE466169T1 (en)
DE (1) DE502008000588D1 (en)
ES (1) ES2345303T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE537333T1 (en) * 2009-01-28 2011-12-15 Alstom Technology Ltd STRIP SEAL AND METHOD OF DESIGNING A STRIP SEAL
US20120045337A1 (en) * 2010-08-20 2012-02-23 Michael James Fedor Turbine bucket assembly and methods for assembling same
US8905716B2 (en) 2012-05-31 2014-12-09 United Technologies Corporation Ladder seal system for gas turbine engines
BE1022361B1 (en) * 2014-11-06 2016-03-17 Techspace Aero Sa Mixed axial turbine engine compressor stator.
EP3438410B1 (en) 2017-08-01 2021-09-29 General Electric Company Sealing system for a rotary machine
EP3498980B1 (en) * 2017-12-15 2021-02-17 Ansaldo Energia Switzerland AG Shiplap seal arrangement

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981609A (en) * 1975-06-02 1976-09-21 United Technologies Corporation Coolable blade tip shroud
US3995971A (en) * 1975-06-02 1976-12-07 United Technologies Corporation Rotatable vane seal
US3970318A (en) * 1975-09-26 1976-07-20 General Electric Company Sealing means for a segmented ring
EP0103260A3 (en) * 1982-09-06 1984-09-26 Hitachi, Ltd. Clearance control for turbine blade tips
FR2552159B1 (en) * 1983-09-21 1987-07-10 Snecma DEVICE FOR CONNECTING AND SEALING TURBINE STATOR BLADE SECTIONS
JPS60133103U (en) * 1984-02-17 1985-09-05 株式会社日立製作所 Seal structure
EP0536575B1 (en) * 1991-10-08 1995-04-05 Asea Brown Boveri Ag Shroud band for axial flow turbine
DE59710924D1 (en) * 1997-09-15 2003-12-04 Alstom Switzerland Ltd Cooling device for gas turbine components
JP3999395B2 (en) * 1999-03-03 2007-10-31 三菱重工業株式会社 Gas turbine split ring
EP1163427B1 (en) * 1999-03-19 2003-12-10 Siemens Aktiengesellschaft Gas turbine rotor with internally-cooled gas turbine blade
JP2002201913A (en) * 2001-01-09 2002-07-19 Mitsubishi Heavy Ind Ltd Split wall of gas turbine and shroud
JP4508482B2 (en) 2001-07-11 2010-07-21 三菱重工業株式会社 Gas turbine stationary blade
US6910854B2 (en) * 2002-10-08 2005-06-28 United Technologies Corporation Leak resistant vane cluster
JP2005233141A (en) * 2004-02-23 2005-09-02 Mitsubishi Heavy Ind Ltd Moving blade and gas turbine using same

Also Published As

Publication number Publication date
US8043050B2 (en) 2011-10-25
JP2008255989A (en) 2008-10-23
EP1995413B1 (en) 2010-04-28
JP5094510B2 (en) 2012-12-12
US20080247867A1 (en) 2008-10-09
ES2345303T3 (en) 2010-09-20
EP1995413A1 (en) 2008-11-26
DE502008000588D1 (en) 2010-06-10

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